Cisco 5520 User Manual

Connecting Cisco 5520 SSO Pair to the Wired Network
It is recommended to connect to a VSS pair and spread the links in each port-channel between the two physical switches to prevent
a WLC switchover upon a failure of one of the VSS switches.
Customer Replaceable Units
Cisco 5520 wireless LAN controller has a minimal amount of separate orderable items, including all of the following:
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Cisco 5520 Specifications

General

Maximum Access Points	1500
Maximum Clients	20000
Form Factor	1RU
Product Series	Cisco 5500 Series
Memory	32 GB
Flash Memory	8 GB
Operating Temperature	32°F to 104°F (0°C to 40°C)
Storage Temperature	-4°F to 149°F (-20°C to 65°C)
Model	Cisco 5520
Ports	8 x 1GE
Redundancy	N+1
Management	CLI
Wireless Standard	802.11ac
Humidity	10% to 95% non-condensing